Of all the unresolved conflicts that erupted as the Soviet Union broke up, the one between Armenians and Azerbaijanis over Nagorno-Karabakh has always been the most menacing.
Now Armenians, Azerbaijanis and the wider world have been reminded that this conflict is a tinderbox that can still ignite to disastrous effect. The 1994 ceasefire has been shattered. The main victims amongst several dozen dead are the young conscripts who serve in the armed forces on either side.